Remove deprecated set-output command (#12)

See https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

Signed-off-by: Antonin Bas <[email protected]>

entrypoint.sh

@@ -25,6 +25,12 @@ THIS_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 
 source $THIS_DIR/check_changes.sh
 
+set_output() {
+    result="$1"
+    echo "Setting 'has_changes' to '$result'"
+    echo "has_changes=$result" >> $GITHUB_OUTPUT
+}
+
 # See https://github.com/actions/checkout/issues/760
 echo "Adding repository directory to the git global config as a safe directory"
 git config --global --add safe.directory "$GITHUB_WORKSPACE"
@@ -39,8 +45,7 @@ elif [[ $BEFORE != "" && $BEFORE != "null" ]]; then # push events
     SHA=$BEFORE
 else
     echo "This does not appear to be a PR or a push event"
-    echo "Setting 'has_changes' to 'yes'"
-    echo "::set-output name=has_changes::yes"
+    set_output "yes"
     exit 0
 fi
 echo "BASE SHA: $SHA"
@@ -50,17 +55,14 @@ CHANGED_FILES=$(git diff --name-only "$SHA" HEAD) || rc=$?
 if [[ $rc -ne 0 ]]; then
     echo "Error when running 'git diff'"
     echo "This is expected when the repo was not checked-out properly, or after a force push"
-    echo "Setting 'has_changes' to 'yes'"
-    echo "::set-output name=has_changes::yes"
+    set_output "yes"
     exit 0
 fi
 
 has_changes=$(check_changes "$CHANGED_FILES" "${PATTERNS[*]}" "${IGNORE_PATTERNS[*]}")
 
 if $has_changes; then
-    echo "Setting 'has_changes' to 'yes'"
-    echo "::set-output name=has_changes::yes"
+    set_output "yes"
 else
-    echo "Setting 'has_changes' to 'no'"
-    echo "::set-output name=has_changes::no"
+    set_output "no"
 fi